TestPipelineImplemented is not module aware

TestPipelineImplemented uses the `go/imports` package in a depreciated way.
It needs to be updated to be module aware.

Find the TestPipelineImplemented test and inspect how it currently uses the go/imports package. Check the package's module-aware usage and update the test accordingly; done means the test works correctly in a Go module context without the deprecated usage.

Written by the indexing model from the issue text.